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Detalii evaluare #64310114

Rezumat problemă

sumprodmax3
#3072

Scrieți un program care citește un număr natural nenul n și care determină și afișează trei numere naturale a, b și c, astfel încât a+b+c=n și produsul a*b*c este maximul dintre produsele oricăror trei numere naturale care adunate dau suma egală cu n.

Consola Minca Carmen (carmen) Carmen Minca ușoară
Clasa 9 Algoritmi elementari Probleme diverse
Rezolvă

Detalii

Problema sumprodmax3 Operații I/O tastatură/ecran
Limita timp 0.1 secunde Limita memorie Total: 64 MB / Stivă 8 MB
Id soluție #64310114 Utilizator Orodel Dorin Ștefan (OrodelDorin)
Fișier sumprodmax3.cpp Dimensiune 255 B
Data încărcării 29 Aprilie 2026, 08:47 Scor/rezultat Eroare de compilare

Evaluare

Mesaj compilare

sumprodmax3.cpp: In function ‘int main()’:
sumprodmax3.cpp:5:5: error: no match for ‘operator<<’ (operand types are ‘std::istream’ {aka ‘std::basic_istream<char>’} and ‘int’)
    5 | {cin<<n;
      |  ~~~^~~
      |  |    |
      |  |    int
      |  std::istream {aka std::basic_istream<char>}
sumprodmax3.cpp:5:5: note: candidate: ‘operator<<(int, int)’ (built-in)
    5 | {cin<<n;
      |  ~~~^~~
sumprodmax3.cpp:5:5: note:   no known conversion for argument 1 from ‘std::istream’ {aka ‘std::basic_istream<char>’} to ‘int’
In file included from /usr/include/c++/13/string:54,
                 from /usr/include/c++/13/bits/locale_classes.h:40,
                 from /usr/include/c++/13/bits/ios_base.h:41,
                 from /usr/include/c++/13/ios:44,
                 from /usr/include/c++/13/ostream:40,
                 from /usr/include/c++/13/iostream:41,
                 from sumprodmax3.cpp:1:
/usr/include/c++/13/bits/basic_string.h:4032:5: note: candidate: ‘template<class _CharT, class _Traits, class _Alloc> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const __cxx11::basic_string<_CharT, _Traits, _Alloc>&)’
 4032 |     operator<<(basic_ostream<_CharT, _Traits>& __os,
      |     ^~~~~~~~
/usr/include/c++/13/bits/basic_string.h:4032:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’
    5 | {cin<<n;
      |       ^
In file included from /usr/include/c++/13/bits/ios_base.h:46:
/usr/include/c++/13/system_error:339:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const error_code&)’
  339 |     operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e)
      |     ^~~~~~~~
/usr/include/c++/13/system_error:339:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:554:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, _CharT)’
  554 |     operator<<(basic_ostream<_CharT, _Traits>& __out, _CharT __c)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:554:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:564:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, char)’
  564 |     operator<<(basic_ostream<_CharT, _Traits>& __out, char __c)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:564:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:570:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, char)’
  570 |     operator<<(basic_ostream<char, _Traits>& __out, char __c)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:570:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:581:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, signed char)’
  581 |     operator<<(basic_ostream<char, _Traits>& __out, signed char __c)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:581:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:586:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, unsigned char)’
  586 |     operator<<(basic_ostream<char, _Traits>& __out, unsigned char __c)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:586:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:645:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const _CharT*)’
  645 |     operator<<(basic_ostream<_CharT, _Traits>& __out, const _CharT* __s)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:645:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’
    5 | {cin<<n;
      |       ^
In file included from /usr/include/c++/13/ostream:880:
/usr/include/c++/13/bits/ostream.tcc:307:5: note: candidate: ‘template<class _CharT, class _Traits> std::basic_ostream<_CharT, _Traits>& std::operator<<(basic_ostream<_CharT, _Traits>&, const char*)’
  307 |     operator<<(basic_ostream<_CharT, _Traits>& __out, const char* __s)
      |     ^~~~~~~~
/usr/include/c++/13/bits/ostream.tcc:307:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<_CharT, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:662:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, const char*)’
  662 |     operator<<(basic_ostream<char, _Traits>& __out, const char* __s)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:662:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:675:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, const signed char*)’
  675 |     operator<<(basic_ostream<char, _Traits>& __out, const signed char* __s)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:675:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:680:5: note: candidate: ‘template<class _Traits> std::basic_ostream<char, _Traits>& std::operator<<(basic_ostream<char, _Traits>&, const unsigned char*)’
  680 |     operator<<(basic_ostream<char, _Traits>& __out, const unsigned char* __s)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:680:5: note:   template argument deduction/substitution failed:
sumprodmax3.cpp:5:7: note:   ‘std::istream’ {aka ‘std::basic_istream<char>’} is not derived from ‘std::basic_ostream<char, _Traits>’
    5 | {cin<<n;
      |       ^
/usr/include/c++/13/ostream:801:5: note: candidate: ‘template<class _Ostream, class _Tp> _Ostream&& std::operator<<(_Ostream&&, const _Tp&)’
  801 |     operator<<(_Ostream&& __os, const _Tp& __x)
      |     ^~~~~~~~
/usr/include/c++/13/ostream:801:5: note:   template argument deduction/substitution failed:
/usr/include/c++/13/ostream: In substitution of ‘template<class _Ostream, class _Tp> _Ostream&& std::operator<<(_Ostream&&, const _Tp&) [with _Ostream = std::basic_istream<char>&; _Tp = int]’:
sumprodmax3.cpp:5:7:   required from here
/usr/include/c++/13/ostream:801:5: error: no type named ‘type’ in ‘struct std::enable_if<false, void>’
sumprodmax3.cpp:8:2: warning: this ‘else’ clause does not guard... [-Wmisleading-indentation]
    8 |  else
      |  ^~~~
sumprodmax3.cpp:13:6: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘else’
   13 |      return 0;
      |      ^~~~~~

Cum funcționează evaluarea?

www.pbinfo.ro permite evaluarea a două tipuri de probleme:

  • probleme la care rezolvarea presupune scrierea unui program complet
  • probleme la care rezolvarea presupune scrierea unei secvențe de program - câteva instrucțiuni, o listă de declarații, una sau mai multe funcții, etc.

Problema sumprodmax3 face parte din prima categorie. Soluția propusă de tine va fi evaluată astfel:

  • Programul sursă este compilat folosind compilatorul corespunzător. Dacă în urma compilării se obțin erori sau avertismente, acestea sunt afișate în această pagină.
  • Dacă programul a fost compilat, executabilul obținut va fi rulat, furnizându-i-se unul sau mai multe seturi de date de intrare, în concordanță cu restricțiile specifice problemei. Pentru fiecare set de date se obține un anumit punctaj, în raport cu corectitudinea soluției tale.

Suma punctajelor acordate pe testele utilizate pentru verificare este 100. Astfel, soluția ta poate obține cel mult 100 de puncte, caz în care se poate considera corectă.

Du-te sus!